Transmission for Mac gets its first major update in nearly two years

By , Feb 29, 2016

Transmission 2.9 for OS X update promt Mac screenshot 001

The popular open-source, cross-platform BitTorrent client, Transmission, today received its first major update in more than a year and a half. As first noted by Softpedia, the surprise update makes the free of charge app fully compatible with the user interface on Macs running OS X 10.9 Mavericks and later.

Transmission can now trim potential URIs from clipboard and supports downloading from HTTP servers on OS X El Capitan. Transmission’s daemon, web client, Qt client and GTK+ client have also received various fixes. All told, there are over 50 changes in this release of Transmission.

Across platforms, Transmission now does a better job at torrent renaming with a common prefix. Additionally, the refreshed application now supports a bunch of cryptographic backends such as PolarSSL, CyaSSL and WolfSSL.

Transmission’s Qt client has gained improvements, too, among them better handling of magnet links and a new contextual menu on the Files tab of the Torrent Properties dialog.

As of this version, Macs with OS X 10.6 Snow Leopard or earlier are no longer supported. Be that as it may, I am particularly glad that Transmission to this date continues to be free of in-app advertising, unlike its rival uTorrent which is full of adware.

Transmission 2.9 changelog

Here’s everything that has been improved and fixed in Transmission 2.9.

All platforms:

  • Fix renaming torrent files with common prefix
  • Fix some more thread safety bugs in the tr_list datatype
  • Fix infinite loop when removing torrent data
  • Add support for CyaSSL/WolfSSL and PolarSSL cryptographic backends; bump OpenSSL minimum to v0.9.7
  • Initial CMake build system support
  • Many improvements to support Windows builds with MSVS and MinGW; drop XP/2003 support, only Vista and up now
  • Allow building against system UTP and DHT libraries
  • Fix several memory leaks and buffer overflows
  • Support miniupnpc API v14
  • Fix “prefetch-enabled” value type in settings.json (boolean instead of integer)
  • Fix some issues discovered by static analysis (cppcheck, coverity)
  • Fix invalid JSON encoding for non-printable characters
  • Fix multi-threaded locale use when encoding/decoding JSON data
  • Fix encrypted communication with libevent 2.1+
  • Prevent completed pieces modification by webseeds
  • Require absolute paths in RPC requests
  • Fix and unify torrent origin display in GTK+, Qt and web clients
  • Fix crash on session shutdown (evdns_getaddrinfo_cancel)
  • Retry if RPC server fails to bind to specified address
  • Improve error checking on metadata retrieval
  • Improve UTF-8 validity checking (merge changes from LLVM)
  • Don’t build transmission-cli by default (it’s long deprecated)

Mac client:

  • UI fixes for OS X 10.9+
  • Trim potential URIs from clipboard
  • Allow downloading files from http servers (not https) on OS X 10.11+
  • Change Sparkle Update URL to use HTTPS instead of HTTP (addresses Sparkle vulnerability)
  • Fix global options popover layout
  • Fix building with Xcode 7+
  • Drop OS X 10.6 support

GTK+ client

  • Fix overshoot and undershoot indicators display with GTK+ 3.16+ in main window
  • Don’t require DISPLAY if started with –version argument

Qt client

  • Improve performance in Torrent Properties dialog for torrents with lots of files
  • Prevent entering file renaming mode with mouse double-click
  • Add context menu on files tab of Torrent Properties dialog resembling that of Mac client
  • Remove torrent file from watch directory even if “show options dialog” is not set
  • Use theme-provided icons in system tray and About dialog
  • Fix initial watch directory scan
  • Improve filter bar look and feel; lots of other small visual fixes; RTL layout fixes
  • Show message to the user when duplicate torrent is being added
  • Improve magnets handling in main window
  • Display notifications via tray icon if D-Bus is not available
  • Show notice on top of filtered torrents list; clear whole filter on notice double-click
  • Add proper compiler flags to indicate C++11 use
  • Fix translation files loading
  • Add Chinese (China), German, Indonesian, Italian (Italy), Korean, Polish (Poland),
  • Ukrainian translations; update existing translations


  • Run as service on Windows when in background mode
  • Rework directory watching, add support for native mechanisms on BSD/Darwin (kqueue) and Windows (ReadDirectoryChanges?)
  • Don’t make assumptions of remote path validity in transmission-remote

Web client

  • Content Security Policy enhancements
  • Enable “resume now” for queued torrents
  • Mark appropriate fields in preferences dialog as HTML5 number fields
  • Update to jQuery 1.11.2, jQueryUI 1.11.4; use jQueryUI menus instead of custom ones

Again, this is the first major update to this free of charge, cross-platform BitTorrent client in nearly two years (the previous update is dated May 18, 2014).

I’m glad they’re keeping this awesome app alive. It’s very fast, reliable, feature-packed and better than BitTorrent’s official client or the ad-infested uTorrent, if you ask me.

You can download Transmission at the official website.

What’s your favorite BiTorrent client for the Mac?

Source: Softpedia

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  • Tim Farris

    what about iOS builds?

    • AFAIK there is no official iOS build, the only builds for iOS that exist are third party ports.

  • Wesh

    I’m using and been using Vuze for a while. (only has one not too disturbing ad)
    Is it interesting to switch over to this?
    Any advantages?

    • ✯Mike✯

      I like having a small and compact UI, vs. a huge window with wasted space. It gets the job done.

      • Wesh

        i see.
        i look into it.

      • Mariano

        i honestly think theres not a better torrent than Transmission . the ui its extremely easy to use, and its very small

    • :D

      Transmission feels much lighter – not really sure if that makes sense but that’s how I feel lol

    • Jason Barton

      Vuze allows you to bind your torrents to your VPN, so if your internet connection drops, downloading stops. No leaks.